Synchrotech or geardriven sell rebuilt transmissions that you can swap out and send back the core. That has the least downtime. Otherwise the synchrotech master rebuild kit for any Honda transmission is great if you want to learn to rebuild one.
Synchros help with gear shifts when the rpms are different between gears. It synchronizes the speeds so they mesh without grinding.
Synchros help with gear shifts when the rpms are different between gears. It synchronizes the speeds so they mesh without grinding.
